午夜福利总站-午夜国产-午夜国产爆乳-午夜国产传媒-午夜国产大片-午夜国产福利片-午夜国产福利在线-午夜国产精品福利-午夜国产精品视频-午夜国产理伦

enciclopédia

'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

vjvcanplmh

13 Oct 2025(atualizado 13/10/2025 às 12h20)

'Its strength is its simplicity': The benefits of cleaning with vinegarSkip to contentBritish Broadc

Temas

Compartilhe

BBCcom_Content_Index_for_September_3_2019.txt'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

'Its strength is its simplicity' The benefits of cleaning with vinegar.txt

'Its strength is mega sena 05 05 2018its simplicity': The benefits of cleaning with vinegarSkip to contentBritish Broadcasting CorporationRegisterSign InHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveHomeNewsIsrael-Gaza WarWar in UkraineUS & CanadaUKUK PoliticsEnglandN. IrelandN. Ireland PoliticsScotlandScotland PoliticsWalesWales PoliticsAfricaAsiaChinaIndiaAustraliaEuropeLatin AmericaMiddle EastIn PicturesBBC InDepthBBC VerifySportBusinessExecutive LoungeTechnology of BusinessFuture of BusinessInnovationTechnologyScience & HealthArtificial IntelligenceAI v the MindCultureFilm & TVMusicArt & DesignStyleBooksEntertainment NewsArtsArts in MotionTravelDestinationsAfricaAntarcticaAsiaAustralia and PacificCaribbean & BermudaCentral AmericaEuropeMiddle EastNorth AmericaSouth AmericaWorld’s TableCulture & ExperiencesAdventuresThe SpeciaListTo the Ends of The Earth EarthNatural WondersWeather & ScienceClimate SolutionsSustainable BusinessGreen LivingAudioPodcast CategoriesRadioAudio FAQsVideoLiveLive NewsLive SportHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherNewsletters'Its strength is its simplicity': The benefits of cleaning with vinegar24 April 2025ShareSaveKatarina ZimmerShareSaveGetty Images(Credit: Getty Images)Katarina Zimmer put vinegar to the test as a cleaning product and discovered a wide range of benefits, for people and the planet.A few months ago in my new Berlin apartment, my toilet and I were at war. No amount of scrubbing or toilet cleaner would evict the limescale coating inside. Frustrated, I turned to Google and stumbled across a page recommending vinegar – something that the previous inhabitant had left behind in abundance. After dropping two tablespoons full of "Essigessenz" – essentially concentrated vinegar – into the toilet and waiting for half an hour, I scrubbed and the limescale came off in a moment. Since then, I've enthusiastically used vinegar to rid my world of limescale. I've found it even more effective than my regular kitchen spray cleaner for getting my sink sparkling. That includes the faucet, which I wrapped in a vinegar-soaked kitchen tissue – whereas my regular cleaning spray dribbled off. And rather than having to buy special tablets to clean my limescale-smothered glass kettle, I simply poured two tablespoons of concentrated vinegar inside and boiled it. As the limescale crackled off, it made a satisfying sizzling sound.I wondered if vinegar had other advantages. Did it also kill off bacteria and other germs? And, importantly, was this simple, natural product better for the environment and for my health than regular cleaning products? The internet is full of sustainability influencers and green cleaning blogs that advertise vinegar as a jack-of-all-trades and a safer and "greener" alternative to "toxic" cleaning products. These claims make sense on the surface; vinegar is after all just fermented alcohol and has long been used as a food preservative, in salad dressings, as well as a household cleaner – but I wanted evidence. After interviewing three experts, I learned that while some of these claims are true, the benefits of vinegar depend a lot on how it's used and the kind of grime you're trying to get rid of.Getty ImagesLimescale dissolves more easily in acidic fluids like vinegar (Credit: Getty Images)Reassuringly, Eric Beckman, a chemical engineer and emeritus professor at the University of Pittsburgh in Pennsylvania, told me that the best cleaning use for acetic acid – the main component of vinegar – is exactly what I had been using it for: as a descaler. Limescale – and rust, for that matter – consists of certain ions that dissolve more easily in acidic fluids like vinegar, he says. Beckman uses vinegar himself to get limescale off mirrors, while the microbiologist Dirk Bockmühl of Germany's Rhine-Waal University of Applied Sciences prefers using lemon juice, which contains citric acid, which he says is a more effective descaler and smells better. (Read more about why vinegar is such an effective cleaner.)That said, vinegar doesn't work on everything. Beckman says that soap does a better job at removing oily films on dishes, while baking soda is effective against processed oils that have stuck onto surfaces while cooking. (Read more about whether baking soda is environmentally friendly).However, Beckman expresses exasperation about a popular remedy of mixing vinegar together with baking soda. The mixture is chemically quite useless, he says, as the acid of vinegar and the base of baking soda effectively cancel each other out. "I use both, but not together," says Beckman. "Together, they give you nothing."   And while vinegar is often touted as a powerful antimicrobial, Bockmühl says, the truth is more nuanced. In a 2020 study, Bockmühl and his colleagues put vinegar to the test against a selection of disease-causing bacteria, viruses and fungi. While many internet recommendations suggest adding a dash of vinegar into a bucket of water for cleaning, Bockmühl found that its anti-microbial effects only kick in at an acetic acid concentration of 5% – its concentration in pure vinegar. And it was only fully effective at distilled concentrations of 10%  – to which the researchers added a dash of citric acid – in killing off five common bacteria, including Escherichia coli and Staphylococcus aureus, as well as a mould, a yeast and a weakened strain of the vaccinia virus. Other studies have found that similar concentrations also work against Sars-CoV-2, the virus that causes Covid-19.  But even these concentrations didn't work against the MRSA bacterium, an especially stubborn strain of Staphylococcus aureus that's resistant to certain antibiotics, while countless bacteria remain untested. Many bacteria – including the ones that ferment alcohol into vinegar – thrive in acids, Beckman adds: "Then they'll be like, 'ooh, yay, vinegar.'" Some moulds, too, are resistant to acetic acid while some viruses – like norovirus – might be, too, Bockmühl suspects. Beckman says that soaps are more effective against bacteria, while standard disinfectants work better against viruses and moulds. Harsh treatments like bleach will definitely kill everything, Beckman says – although bleach can be unsafe if used incorrectly.Getty ImagesVinegar is less effective against processed oils that have stuck onto surfaces during cooking (Credit: Getty Images)Bockmühl stresses that, even for the germs that vinegar does kill, a relatively high concentration is needed. The concentration won't be adequate "if you just put a teaspoon of vinegar into your cleaning solution", Bockmühl says. However, the higher the dose of acetic acid, the more irritating it can be on the skin, he adds. It is harmful if it gets into your eyes. Surfaces can suffer, too: vinegar corrodes natural stone and metals like copper, bronze and brass, according to the Italian chemist Dario Bressanini's book The Science of Cleaning. And in dishwashers or washing machines, it can harm the rubber gaskets used to seal them, while it could also damage coffee machines and strip away the coating on tiles and grout, Bressanini writes. But Bockmühl assures me that it's fine to use vinegar on glass and ceramic surfaces – like my toilet – and stainless steel sinks.The trouble that Bockmühl sees with using homemade cleaning products is that they don't come with instructions or safety recommendations. "They might be safe if you know what you're doing," he says, "but there are a lot of really stupid and absurd recommendations on the internet".More like this:? Are you cleaning your water bottle enough?? Why you might want to change your bedclothes more often? Seven proven ways to help the planet in 2025 To learn more about how the health risks of vinegar compare with those of conventional cleaners, I called up Nicola Carslaw, professor of indoor air chemistry at the University of York in the UK. Her concern is how cleaners disrupt the air in our homes and buildings. It's known that professional domestic cleaners tend to have higher rates of asthma than other occupational groups, although it's proven difficult to pin that on any single product or ingredient.In a recent study, Carslaw and her colleagues tested 23 different cleaning products including dishwasher fluid, washing up liquid and spray products, and found that many of them released volatile chemical compounds (VOCs). Some of these compounds, like terpenes, are often added to give pleasant aromas, such as lavender or pine oil, but they're highly reactive in the atmosphere. Terpenes for instance, easily react with ozone in the air, creating miniscule particles. In general, inhaling particles of this size has been linked to lung and heart disease."Your nose is a really good filter for the big particles, but the smaller ones can get all the way into your lungs [and] into the bloodstream," Carslaw says. Interestingly, in her study she found that cleaning products marketed as "natural" or "green" didn't seem any healthier in this regard. "The natural/green ones had as many, if not more VOCs as the standard cleaners, and in many cases they were more reactive," she says.Vinegar passes muster on any sustainability scale because it's simple and it's degradable – Eric BeckmanBut vinegar, by contrast, only consists of water and acetic acid (and a few other substances that make the difference between red and wine vinegar, for instance). As such, "it's just not going to be chemically reactive in the same way", Carslaw says. Another advantage of vinegar is that it's usually applied on a cloth to wipe surfaces rather than used as a spray, Carslaw adds. Research shows that cleaning products applied in spray form have more harmful effects on the respiratory system than liquids and wipes. (Read more about the health risks associated with cleaning products in Jessica Bradley's story). "When you spray something, you're turning the chemical into a form that's much easier to breathe [in] than if you have the liquid," Carslaw says. That said, she always advises gloves when there's risk of skin contact, good ventilation and avoiding excessive cleaning, whatever product is used. (Read more about whether we're cleaning too much for our own good).Getty ImagesVinegar quickly breaks down and therefore its environmental impact is low (Credit: Getty Images)This all left me with one remaining question: is using vinegar more environmentally friendly than conventional cleaners? That's a hard question to answer, says Beckman. Ideally, there would be life cycle analyses for cleaning products which track impacts from cradle to grave, tracing each ingredient back to its source, how it's produced, transported, packaged and eventually disposed of. But very few companies do that thoroughly, even if they do brand their products as "green", Beckman says. "But I will say this about vinegar. [Its] strength is its simplicity," Beckman says. Conventional cleaners can consist of more than a dozen different ingredients, many of them industrially manufactured in energy-consuming processes, he says. Acetic acid is born through the natural, yeast-driven fermentation of alcohol, which itself comes from the natural fermentation of sugar. The biggest environmental impact of vinegar-making is where the sugar came from – whether it's grapes, apples, grains, potatoes, or rice – which are largely renewable resources. Bockmühl cautions that this only applies to naturally fermented vinegars, the ones typically sold as food products; there are also synthetic vinegars which are derived from fossil fuels, meaning they come with all the environmentally harmful impacts of oil and gas extraction.  Even at the very end of its life, vinegar has little impact. While many ingredients in soaps are tough molecules and don't easily biodegrade, sometimes continuing to kill organisms once they're in the environment, vinegar quickly breaks down, Beckman says. "Vinegar passes muster on any sustainability scale because it's simple and it's degradable," he says. After discovering all of this, I felt even better about using vinegar. I probably won't rely on it for ridding my surfaces of germs, but I'll keep using it to remove limescale and look forward to trying it out on the next rusty item I find. I'm happy to put up with the smell, knowing that I'm using a sustainable product that's likely better for my health. --For essential climate news and hopeful developments to your inbox, sign up to the Future Earth newsletter, while The Essential List delivers a handpicked selection of features and insights twice a week.For more science, technology, environment and health stories from the BBC, follow us on Facebook, X and Instagram.EarthSustainability on a ShoestringHygieneHealthSustainabilityEnvironmentClimateScienceFeaturesWatchExplaining how a touchscreen works with a sausageBritish mathematician Hannah Fry digs into the science of touchscreens.4 Aug 2025ScienceSeven images that transformed our world viewWatch how the maps and images of our planet from above have changed over the last two millennia.30 Apr 2025EarthTen striking images of an Earth scarred by humansFrom a shipwrecking yard in Bangladesh to a river of iron dioxide in Canada, a deep dive in Ed Burtynsky's work.16 Apr 2025EarthWhat's inside a black hole?Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.9 Apr 2025ScienceUsing bubbles to remove forever chemicals from our waterBBC Click visits a UK research team working on a solution to remove toxic chemicals known as PFAS from water.27 Mar 2025ScienceHow sex with Neanderthals changed us foreverWe find out what we gained when Homo sapiens mated with Homo neanderthalensis many thousands of years ago.18 Mar 2025ScienceTheory of Evolution: How did Charles Darwin come up with it?The British naturalist embarked on an extraordinary journey, did hundreds of experiments, and wrote for 20 years.12 Feb 2025ScienceRaja the elephant asking for a road tollIn Sri Lanka, a charming elephant cheekily halts traffic for treats. 29 Jan 2025EarthInside the hidden world of rhino romanceWatch two rhinoceroses involved in a game of 'kiss and chase'.24 Jan 2025EarthThe power of hugs for reducing inflammation in the bodyDr. Lisa Dahlgren discusses the effect human touch has on our health and wellbeing.22 Jan 2025HealthA mother tiger on a fierce hunt to feed her cubsWhile her three offspring take a leisurely bath, this Bengal tiger mother must find food for the entire family.16 Jan 2025EarthHow foxes outsmart world's heaviest raptor in quest for foodWatch red foxes challenge the Steller's sea eagle, the world's heaviest raptor, as they search for food in Japan.8 Jan 2025EarthHomo juluensis: Possible 'new ancient human' identifiedResearchers may have identified a new human species that lived around 300,000 years ago in Asia.6 Jan 2025ScienceMum saves baby seal with a clever trickWatch as David Attenborough reveals the unique behaviour of a mother seal to protect her pup in icy waters.31 Dec 2024EarthHow Arctic communities protect themselves from avalanchesBBC Click finds out how local communities in Svalbard use technology to combat avalanches and heavy snowfall.31 Dec 2024ScienceMountain goats: A death-defying battle to mateWatch the world's largest species of goat fight for the right to mate, teetering on the edge of perilous drops.17 Dec 2024EarthThe near miraculous escape of a cave swiftThe Tam Nam Lod Cave is home to over a quarter of a million swifts. But there are hidden dangers.12 Dec 2024EarthMeet the mudskipper: The remarkable fish that lives on landThe mudskipper is a fish that can leap with a flick of its tail. Watch a particularly agile specimen in action.3 Dec 2024EarthWatch the dramatic escape of tiny fish from deadly sharksThe Moorish idol, a dramatic little fish with dazzling stripes, adopts a clever strategy to save its life.27 Nov 2024EarthEarth tides: Why our planet's crust has tides tooHow do they differ from the ocean? A geophysicist breaks it down for us.28 Sep 2024Weather & scienceMore from the BBC3 hrs agoFarmer, 37, dies after missing out on new treatment Robin Elcock was unable to access new treatment for brain tumours as he did not have the necessary tissue.3 hrs ago4 hrs agoDementia suits show how tricky daily tasks can beThe simulation suits are helping health staff understand the frustration patients face every day.4 hrs ago4 hrs agoBlood cancer treatments come on 'leaps and bounds'A Wiltshire woman, who is now in remission, says new treatments are also much gentler on the body. 4 hrs ago8 hrs agoPostcode lottery for new cancer treatments, doctors warnExperts say bureaucracy is "stifling innovation" and that applying for funding to pay for new treatments can be "cumbersome".8 hrs ago8 hrs agoDr Xand: Stress is normal. Here's how to manage it betterStress, in small doses, can be good for us. Here are five simple, science-backed ways to manage it better. 8 hrs agoBritish Broadcasting CorporationHomeNewsSportBusinessInnovationCultureArtsTravelEarthAudioVideoLiveWeatherBBC ShopBritBoxBBC in other languagesFollow BBC on:Terms of UseAbout the BBCPrivacy PolicyCookiesAccessibility HelpContact the BBCAdvertise with usDo not share or sell my infoBBC.com Help & FAQsContent IndexCopyright 2025 BBC. All rights reserved. The BBC is not responsible for the content of external sites. Read about our approach to external linking. 

NEWSLETTER GRATUITA

Nexo | Hoje

Zambia_presses_China_for_more_compensation_after_toxic_spill_in_Kitwe_copper_mine.txt

BBCcom_Content_Index_for_September_27_2020.txt lazer e os enciclopédia ponto quente.

GRáFICOS

nos eixos

Yvette_Cooper_reaffirms_Ukraine_support_as_she_visits_Kyiv.txt

BBCcom_Content_Index_for_September_7_2019.txt ponto quente e os conhecimento entretenimento.

Navegue por temas

BBCcom_Content_Index_for_September_28_2018.txt BBCcom_Content_Index_for_September_5_2019.txt BBCcom_Content_Index_for_September_8_2025.txt BBCcom_Content_Index_for_September_2_2019.txt BBCcom_Content_Index_for_September_8_2023.txt BBCcom_Content_Index_for_September_4_2018.txt BBCcom_Content_Index_for_September_2_2018.txt BBCcom_Content_Index_for_September_25_2023.txt BBCcom_Content_Index_for_September_30_2024.txt BBCcom_Content_Index_for_September_5_2020.txt
九九热在线视频观看这里只有精品 | 强被迫伦姧高潮无码A片漫画 | 麻豆精品一区二正一三区 | 欧美精品一区二区蜜臀亚洲 | 亚洲乱码一卡二卡四卡乱码新区 | 国产AV国片偷人妻麻豆 | 久久久久久全都是精品app | 久久爱色综合天天综合网 | 国产毛片久久精品 | 不卡视频一区二区三区 | 久久精品极品盛宴观看 | 雨宫琴音qvod | 国产极品JK白丝玉足喷白浆 | 国产在线观看清码视频 | 欧美黑人猛性暴交 | 日产精品乱码卡一卡2卡三 日产精品卡二卡三卡四卡乱码视频 | 日韩精品高清在线 | 性欧美暴力猛交xxxxx高清 | 中文字幕无码一区二区免费 | 日日噜噜噜夜夜爽爽狠狠 | 成人免费20242024被爆出 | 亚洲AV无码一区二区色情蜜芽 | 久久人视频 | 日韩精品午夜 | 美国黄色一级毛片 | 国产美女被爽到高潮激情免费A片 | 免费国产在线观看老王影院 | 韩日在线 | 欧美成人一区二区三区在线视频 | 亚洲资源在线 | 国产色精品久久人妻 | 欧美一区二区三区高清视频 | 天天操天天舔天天射 | 麻豆京东传媒精品2021 | 日韩高清成人 | 九色国产在线 | 国产在线精品视频免费观看 | 毕业时刻演员表 | 二级黄绝大片中国免费视频 | 国产1区2区三区不卡 | 先锋资源久久 | 小荡货腿张开给我cao免费视频 | 国产亚洲精品久久777777 | 看全黄大色黄大片老人做 | 好涨好爽好大视频免费 | 在线看91 | 无套内谢孕妇毛片免费看 | 最近在线视频观看2018免费 | 女体拷问研究所下载 | 亚洲高清免费观看 | 久久这里只精品热在线99 | 欧美激情一区二区三区中文字幕 | 欧美性1生交XXXXX无码 | 九九国产精品视频 | 日本强伦姧人妻无码视频 | 亚洲精品偷拍的自拍的 | 一区毛片 | 天天躁日日躁狠狠躁黑人躁 | 欧美成人精品A片免费一区99 | 美女伊人网 | 女人下边被添全过程A片图片 | 国产精品成人A片在线果冻 国产精品大尺度尺度视频 国产精品对白交换视频 | 成人无码高潮AV在线观看 | 狠狠色噜噜狠狠狠狠狠色综合久久 | 久久精品国产72精品亚洲 | 日本免费无码一区二区到五区 | 日本视频播放免费线上观看 | 久久国产精品人妻一区二区 | 国产目拍亚洲精品一区二区 | CHINESE色系FREE中国| 色吧影院男与女 | 久久网综合 | 中文字幕无限乱码不卡2021 | 日韩小视频在线 | 丰满护士巨好爽好大乳小说 | 99亚洲男女激情在线观看 | 黄页视频在线观看免费 | 婷婷色播电影 | 99视频网站 | 丰满少妇大力进入A片中文 丰满少妇内射一区 | 国产亚洲精品久久久久久入口 | 艳妇荡岳丰满交换做爰 | 岛国色情A片无码视频免费看 | 一区二区三区在线免费视频 | 免费无码又黄又爽又刺激 | 日本精品人妻无码77777 | 丰满人妻中文字幕在线观看 | 国产午夜精品久久理论片小说 | 亚洲欧洲日产国产 最新 | 高清一区二区不卡视频 | 波多野结衣在线免费视频 | 久久99精品国产免费观看 | 黄色片网站视频 | 国产精品久久久久久久久久久久 | 日韩精品一区二区三区中文3d | 欧美日本道免费二区三区 | 成人18网址在线观看 | 国产97色在线 | 日韩 | 日韩一区二区三区无码A片 日韩一区二区三区射精 | 抽插内射高潮呻吟爆乳 | 久久www免费人成精品香蕉 | 日韩色中色 | 欧美一区二区三区高清不卡tv | 又黄又爽又无遮挡在线观看免费 | 四色在线| 激烈啪啪啪动态图 | 男女做爰全过程免费现看 | 久久人人玩人妻潮喷内射人人 | 伊人手机在线视频 | WWW成人国产高清内射 | 91色欧美 | 黑人超大巨茎 | 午夜福利影院私人爽 | 天天操天天做 | 日本xxx视频 | 国产精品亚洲欧美动漫卡通 | 视频区国产亚洲.欧美 | 92看片淫黄大片一级 | 亚洲视频999 | 巨黄的长篇肉辣文小说 | 最近中文字幕免费大全 | 日产乱码卡一卡2卡三卡四麻豆 | 欧美性爱 五月 | 中文字幕在线观看一区 | 国产中的精品AV一区二区 | 玖草在线中文在线2024 | 婷婷六月丁香缴 清 | 五月丁香婷姐色 | 日本三级在线观看免费 | 鲁一鲁色一色 | 免费无码又爽又刺激高潮视频日本 | 最近免费中文字幕大全高清大全 | 国产又色又爽又黄的视频免费观看 | 亚洲精品白浆高清久久久久久 | 免费高清资源黄网站在线观看 | 亚洲成在人线中文字幕 | 欧美日韩在线视频不卡一区二区三区 | 亚洲欧美日韩高清一区二区三区 | 草色噜噜噜AV在线观看香蕉 | 综合久久88色情 | 热热涩热热狠狠色香蕉综合 | 人妻夜夜爽天天爽三区麻豆AV网站 | 亚洲伊人久久综合成人 | 啪啪激情婷婷久久婷婷色五月 | www自拍 | 亚洲国产精品免费观看 | 高h辣h双处全是肉一对一 | AV国産精品毛片一区二区网站 | 亚洲无人区码卡二卡三卡四卡 | 久久精品国波多野结衣 | 免费黄色电影观看 | 99久久无码一区人妻A片蜜 | 色妹子影院 | 亚洲永久免费视频网站 | 国产玖玖在线 | 毛茸茸xxx免费视频 毛茸茸xxx娇小 | 97福利视频精品第一导航 | 99久久无码一区人妻A片蜜臀 | 九九精品免费观看在线 | 午夜伦理yy44008影院 | 久久精彩在线视频6 | 久久99九九99九九99精品 | 无码观看欧美夜夜夜夜爽 | 国产男女猛烈无遮挡A片小说 | 美女毛毛片 | 一级毛片免费播放 | 四库影院884TT永久地址 | 欧美又大又黄又粗又长A片 欧美又大又色又爽AAAA片 | 日韩午夜小视频 | 真人作爱视频免费网站 | 手机在线观看网站免费视频 | 国产成人综合五月久久网址 | 无码日本邻居大乳人妻在线看 | 囯产精品一品二区三区 | 国产精品爽爽久久久久久无码 | 国产精品自在在线午夜区app | аⅴ资源中文在线天堂 | AV国产在线精品国自产在线 | 色婷婷一区二区三区四区成人网 | 麻豆免费国产福利视频 | 亚洲AV无码区在线观看东京热 | 饥渴的少妇黑人在线观看 | 激情操| WWW亚洲精品久久久 www在线小视频免费 | 啊灬啊灬啊灬快灬深用力A片 | 99蜜桃臀久久久欧美精品 | 2019中文字幕乱码免费 | 久久艳妇乳肉豪妇荡乳A片PY | 欧洲乱码卡一卡二 | 国产精品人妻一码二码尿失禁 | 国产精品系列在线一区 | 2019国产最新视频在线观看 | 久久免费视频精品在线 | 毛片免费观看 | 天美传媒AV成人片免费看 | 在线无码中文字幕一区 | 九九热思思 | 麻豆视频国产剧情演绎 | 日韩色网 | 97色轮 | 欧美一区二区日韩一区二区 | 最近免费中文字幕完整版在线看 | 午夜视频网 | 亚洲一级视频在线观看 | 日本无翼乌邪恶彩色无摭挡3B | 韩国美女毛茸茸 | 国产最新免费高清在线视频 | 欧美经典人人爽人人爽人人片 | 国产福利一区二区三区在线观看 | 韩国精品欧美一区二区三区 | 亲亲动漫网| 久久精品人妻无码一区二区三区盗 | 久久久久久97 | 无人区乱码1区2区3区 | 91精品免费久久久久久久久 | 乳奴调教H产乳涨揉产奶调教A片 | 久久久久伊人 | 天天射影院 | 国产精品理论片 | 在线视频精品免费观看10 | 国产亚洲情侣久久精品 | 欧美日韩国产另类一区二区三区 | 国产人成精品香港三级在 | 色中色成人导航 | 亚洲激情视频 | 亚洲AV永久无码麻豆A片 | 久久re视频这里精品一本到99 | 91在线网址 | www.中文字幕 | 欧美1区2区3区 | 色播久久 | 疯狂的少妇2做爰完整版韩国 | 国产中文字幕乱码免费 | 武侠古典91色综合 | np肉文一女多男 | 欧美精品在线观看 | 亚洲精品一区二区三区福利 | 国产精品白浆一区二小说 | 扬名立万电影在线观看 | 亚洲乱码国产一区三区 | 亚洲人成图片网站 | 特色毛片 | 日韩2区| 久久久精品午夜免费不卡 | 91精品手机国产在线能 | 骚片AV蜜桃精品一区 | 亚洲精品久中文字幕 | 天天综合天天做 | 高清不卡伦理电影在线观看 | 日本视频免费在线观看 | 天堂亚洲网 | 强壮公弄得我次次高潮A片强视频 | 俺去也网 | 最近韩国日本免费高清观看 | 成人性视频免费网站在线 | 日韩国产成人无码AV毛片蜜柚 | 中文字幕qvod| 真人做A免费观看 | 欧美高清hd | 里番本子侵犯肉全彩A片视频一区 | 国产高清国内精品福利色噜噜 | 亚洲国产精品影院 | 日本免费观看的视频在线 | 99ri在线精品视频 | 午夜在线亚洲男人午在线 | 亚洲九九九| 国产九九精品 | 国产精品久久久久久免费 | 99热资源| 亚洲一区二区免费 | 欧美1卡一卡二卡三新区 | 大香伊人蕉在线观 | 宝贝看我是怎么吃你水蜜桃的视频 | 亚洲一区二区三区国产精华液 | 香蕉97 | 亚洲精品午夜视频 | 日韩三级免费 | 国内精品一卡2卡3卡四卡 | 精品三级网站 | 国产精品污视频 | 日本三级中文字幕 | 免费看黄色一级片 | 日本黄在线 | 和黑人高潮了10次A片 | 国产精品久久久久久亚洲影视 | 亚洲AV国产精品无码精 | 精品国产一区二区三区四区勃大卷 | 国产一卡2卡3卡4卡无卡免费网站 | 亚洲丰满熟女一区二区蜜桃 | 日本午夜精品久久久无码 | 一女多男nP现代高H 一区二区三区好的精华液杨朝越 | 亚洲图片偷拍图自拍97 | 天堂网在线观看视频 | 欧美高清在线视频一区二区 | 毛片免费网址 | 老司机午夜精品视频 | 天堂网在线www最新版在线 | 中字幕久久久人妻熟女 | 成人无码免费A片免费看软件 | 7723日本电影免费观看完整版 | 中文字幕热久久久久久久 | 亚洲国产系列久久精品99人人 | 夜夜操夜夜操 | 久久精品www | 国产午夜精品视频在线播放 | 2018最新午夜在线视频 | 偷自视频区视频首页 | 亚洲高清在线视频 | 2021韩国理论片在线观看私人影院 | 欧美啪啪网站 | 男人和女人做污污污的事APP免费 | 欧美日韩高清不卡免费观看 | 韩国三级大全久久网站 | 中文久久 | 2024四虎影视最新免费 | 无码欧美黑人又大又 | 久久国产免费 | 亚洲A片无码一区二区三区在线 | 国产又黄又大又色爽的A片小说 | 免费v片| 激情内射亚州一区二区三区爱妻 | 欧美兽交少妇XXX | 欧美日韩午夜精品不卡综合 | 国产九色在线 | 国产精品黄在线观看免费网站 | 成人国产精品免费视频 | 我的yin荡女佳佳第18章 | 四虎影视永久在线精品 | 忘忧草社区WWW日本高清图片 | 伊人影院久久 | 国产AV亚洲精品无码专区 | 丰满熟女人妻大乳波多野吉衣 | 久久久久久久99久久久毒国产 | 无码日韩精品一区二区免费 | 国产精品人妻免费精品 | 精品成人资源在线观看 | 国内揄拍国产精品人妻门事件 | 午夜一级做a爰片久久毛片 午夜亚洲视频 | 在线观看免费的小电影网站 | 91秒拍国产福利一区 | 亚洲精品综合在线影院 | 亚洲午夜未满十八勿入 | 欧美一区二区在线观看 | H高潮嗯啊娇喘抽搐A片男男视频 | YIN荡的老师系列第6部分视频 | 日本三级日产三级国产三级 | 免费电影1000 | 丰满少妇又爽又紧又丰满在线观看 | 男女又黄又刺激B片免费网站 | 青青草手机版免费视频 | 日本欧美亚洲中文在线观看 | 91福利一区 | 国产特黄特色a级在线视频 国产素人自拍 | 日本三级精品 | 色-情-伦-理一区二区三区电影 | 国产精品久久久久福利网站 | 99久久综合给久久精品 | 成人老司机深夜福利久久 | 8050午夜二级一片 | 欧美 亚洲 中文 国产 综合 | 中文乱码字慕人妻熟女人妻 | 亚洲国产剧情中文视频在线 | 美女午夜色视频在线观看 | 高清一区二区不卡视频 | 国产成人精品福利网站在线观看 | 99精品免费在线观看 | 国产福利社区 | 日韩三级在线免费观看 | 小小视频资源免费观看高清 | 99热这| 国产老女人一区二区A片 | 色豆豆永久免费网站 | 国产精品久久久久久久久动漫 | 麻豆视传媒免费版 | 你好湿呀!小妖精快叫 | 夜夜夜夜操 | 国产天美文化传媒 | 波多野结衣dvd在线播放 | 天天色天 | 免费国产一级 | 福利所导航导航导航导航 | 在线视频一区二区三区三区不卡 | 成人免费影 | 欧美性爽交A片大全 | 撑 趴 润滑 痛苦 求饶 BL | 国家一级毛片 | 国产精品久久影院 | 在线天堂网 | 九九涩 | 国产一区二区三区影院 | 日韩在线一区二区三区 | 免费观看大片bbb | 日本在线无码中文一区免费 | 免看黄29分钟继续看 | 91精品免费不卡在线观看 | 中日韩一卡二卡三卡四 | 国产三级日本三级在线播放 | 色网址| 啪啪激情婷婷久久婷婷色五月 | 大片免免费观看视频播放器在线观看 | 天天干视频在线观看 | 丁香六月久久婷婷开心 | 亚州 色毛片免费观看 | 在线观看成人网 | 日韩亚洲全网最全无码 | 国产熟女系列丰满熟妇 | 中文字AV字幕在线观看 | jizz喷水| 国内一本到不卡在线观看 | 日韩在线卡2卡3卡4卡5卡免费 | 哪个网站可以看正版动作片 | 欧美一区视频在线 | 在线视频这里只有精品 | 亚洲精品色情APP在线下载观看 | 国产精品久久久AV久久久 | 国产精品成人A片在线果冻 国产精品大尺度尺度视频 国产精品对白交换视频 | 国产精品九九视频 | 国产我不卡 | 日韩欧美群交P片內射中文 日韩欧美中 | 国产熟妇BBWBBWBBW歼尸 | 黄页网站视频 | 熟女人妻水多爽中文字幕 | 秋霞国产精品 | 亚洲欧美成人综合久久久 | 久久re视频这里精品一本到99 | 日韩精品一区二区三区在线观看l | 久久精品成人国产午夜 | 五月丁香| 午夜久久久久久 | 亚洲国产精品嫩草影院永久 | 亚洲亚洲人成综合网络 | 肉乳乱无码A片观看免费 | 亚洲精品乱码一区二区三区 | 亚洲精品国产专区91在线 | 天天拍天天干 | 国产成人综合洲欧美在线 | 国产高清福利91成人 | javhdxxx| 成年人午夜电影 | 嫡女在闺房里被强高H | 农村国产妇女精品一吃春药的效果 | 撸撸看电影 | 四虎影视884a精品国产古代 | 国产在线不卡免费播放 | 免费的av不用播放器的 | 色综合伊人色综合网站 | 66精品综合久久久久久久 | 天天操 夜夜操 | 国产精品黄在线观看免费软件 | 亚洲国产成人久久99精品 | 站长推荐国产精品视频 | 噜噜AV亚洲一区二区 | 三男一女伦奷A片 | 国产精品99久久久久久WWW | 女网址www女影院 | 女人aaaaa片一级一毛片 | 一级毛片完整版免费播放一区 | 在线免费视频国产 | 日本伊人网 | 国产人妻XXXX精品HD | a级毛片免费高清毛片视频 a级毛片免费 | 狂野欧美激情性XXXX在线观看 | h网址在线观看 | 99热这里只有精品国产99热门精品 | 一级α一级α片免费观看网站 | 污污在线网站 | 亚洲欧美日韩国产精品26u | 亚洲阿v天堂在线 | 天天射影院 | 日本高清免费一本在线观看 | 亚洲日产韩国一二三四区 | 欧美又粗又大又爽的A片 | 91精品国产高清久久久久 | 无码无遮挡成人A片 | 亚洲激情网站 | 亚洲在线电影 | 91色在线| 欧美videos人牛交 | 色婷婷六月 | 久久综合导航 | jizz韩国 | 婷婷激情综合五月天 | 青草热久精品视频在线观看 | 色七久久久久综合影院 | 99re在线精品视频 | 都市人妻古典武侠另类校园 | 日韩精品中文字幕久久 | 国产电影一曲二曲三曲 | 日本免费无码A专区在线观看 | 综合婷婷| 免费国产成人α片 | 97国产精华最好的产品在线 | 久久久久国产成人精品 | 国产传媒18精品A片一区 | 国产成人18黄网站免费 | 免费观看又色又爽又黄的 | 毛片随便看| 厨房少妇人妻好深太紧了 | 插影院 | 人人干人人澡 | 午夜精品久久久久久久爽 | 久久久噜噜噜 | 国产在线a免费观看 | 国产精品久久久久一区二区三区共 | 浪荡受自我调教纯肉BL | 男女AA片免费 | 日韩视频欧美视频 | 日本做爰A片AAAA | 国外卡一卡二卡三免费专区 | 国产在线拍揄自揄视频菠萝 | 丁香六月深婷婷激情五月 | 最近免费中文字幕完整版在线看 | 少妇做爰奶水狂喷AV | 美女大尺度裸体写真 | a级片观看 | 亚洲视频日本有码中文 | 最近免费中文字幕大全免费 | 日本成人精品 | 国产真实伦在线观看视频 | 亚洲精品一区 | 久久久久久久国产精品 | 国产高清在线观看视频手机版 | 亚洲国产精品嫩草影院在线观看 | 高潮无遮挡成人A片在线看 高辣H文黄暴糙汉文H | 亚洲欧美综合在线天堂 | 成人无码高潮AV在线观看 | 99热在线这里只有精品 | 亚洲精品久久久久久无码AV | 日韩亚洲欧美中文在线 | 欧美片免费观看网址 | 天天做天天爽天天谢 | 老湿英视在现看免费 | 日本www色视频成人免费 | 快播电影网站导航 | 亚洲国产精品一区二区动图 | 秋霞伦理手机在线看片 | 国产一级特黄aaa大片 | 日韩一本在线中文字幕 | 国产麻豆精品人妻无码A片 国产麻豆精品久久一二三 国产伦精品一区二区三区在线观看 | 8050网午夜一级毛片免费不卡 | 免费含羞草AV片成人 | 国产免费播放一区二区 | 日本高清不卡中文字幕 | 黄色网址亚洲 | 国产一级毛片网站 | 国产一区二区三不卡高清 | 欧美日韩一区二区三区色综合 | 337日本| 日本真人做爰高潮全过程 | 大陆一级毛片无遮挡 | 快播制服丝袜 | 伊人久久大香网 | 秋香蕉丝瓜榴莲污APP下载 | 免费精品国产人妻国语三上优雅 | 美景之屋4在线未删减免费 美景之屋4在线 | 国产精品国产三级国产普通 | 国产色图在线观看 | 中餐厅第五季 | 999国产精华是正规产品吗 | 亚洲日本香蕉视频观看视频 | 日本一区二区三区不卡在线看 | 日韩欧美在线观看视频一区二区 | 我是唱作人第二季免费 | 欧美99久久无码一区人妻A片 | 久久97精品久久久久久清纯 | 色老头老太xxxxbbbb | 免费一区二区三区久久 | 一区二区久久久久草草 | 男人猛躁进女人的毛片A片小说 | 国产 欧美 日本 | 天堂网中文 | 在线观看你懂的网址 | 国精品人妻无码一区二区三区三 | 日韩在线视频www色 日韩在线免费观看视频 | 亚洲色 自拍 偷拍 清纯唯美 | 国产精品a无线 | 国产精品国产三级国AV在线观看 | 日本妇人成熟免费中文字幕 | 荡乳尤物3HP1V5 | 亚洲一个色 | 四虎影视永久免费观看网址 | 最近更新中文字幕2018全集免费 | 中文乱码字慕人妻熟女人妻 | 欧美 国产 亚洲 卡通 综合 | 国产精品久久久久久一级毛片 | 成午夜精品一区二区三区精品 | 嗯啊抵在墙上H失禁受男男 嗯啊灬别停啊灬用力灬快 嗯啊快拔出来我是你老师 嗯啊在线观看 | 粗大新婚娇妻娇嫩 | 久久网综合 | 免费在线视频一区 | 久久久久女人精品毛片九一 | 国产成人mv 在线播放 | 国产精品美女自在线观看免费 | 亚洲精品久久久久999666 | 2020最新国产自产精品 | 日韩精品视频网 | 国产v视频 | 一本久道久久综合狠狠躁AV | 久久午夜一区二区 | 国产成人无精品久久久久国语 | 2021中国大陆精品视频xxxx | 精品国产一区二区三区四区勃大卷 | 秋霞在线骑兵区 | 欧美激情一区二区三区中文字幕 | 国产亚洲精品久久7777777 | 免费一级成人免费观看 | 国产视频日韩 | 亚洲AV久久无码精品夜夜挺 | 久久在精品线影院精品国产 | 中文字幕人乱码中文 | 鲁一鲁色一色 | 日韩经典欧美精品一区 | 亚洲中文字幕一二三四区苍井空 | 精品AAAA巨乳 | 国产亚洲小视频线播放 | 国产伦子系列沙发午睡 | 国产美女无遮挡裸体毛片A片软件 | 国产对白精品刺激一区二区 | 中文天堂在线观看 | 日本黄视频在线观看 | 美女强奷到抽搐在线播放 | 国产目拍亚洲精品一区二区三区 | 国产福利一区二区 | 67id人成国产在线 | 小说区图片区激情区视频区 | 最新中文乱码字字幕在线 | 国产福利一区二区精品 | 一本一道日韩一二三四区免费 | 国产真实乱人偷精品人妻图片 | 最近免费MV在线观看动漫 | 亚洲 无码 欧美 经典 | 在线免费成人电影 | 精品久久免费视频 | 毛片免费观看久久精品 | 日本一线a视频免费观看 | 日韩成人免费视频播放 | 色婷婷久久啪啪一区二区 | 精品无码国产污污污免费网站2 | 婷婷色五月另类综合视频 | 亚洲欧美一区二区三区图片 | 51精品视频免费国产专区 | 又黄又爽又猛1000部A片 | 国产综合色产在线视频 | 深爱成人 | 亚洲 日韩 中文字幕区 | aaaaa国产毛片 | 欧美精品一区二区三区四区 | 久久天堂一区二区三区 | 99ri精品| 青青草视频app在线播放99 | 波多野结衣久久国产精品 | 柳岩老师好紧好爽再浪一点 | 四虎影视库免费永久视频 | 亚洲网站在线观看 | 黄网站在线观看视频 | 韩国日本不卡高清免费视频 | 久久AV无码乱码A片无码波多 | 亚洲精品嫩草AV在线观看 | 国产精品成人影院 | 高清国产在线直播 | 国产成人精品福利网站在线观看 | 无人区卡一卡二卡网站 | 快穿女主有名器的H纯肉黄暴拉文 | 性一交一乱一交A片久 | 999国产精华是正规产品吗 | 国产成人精品三级在线 | AV片在线观看免费光看高清 | 麻豆免费版| 一个人看的视频观看免费高清 | 特级aa 毛片免费观看 | 掀起衣服揉她的奶头亲吻视频 | 黄色网址大全免费 | 激情无码人妻又粗又大又硬 | 高清无码v视频日本www | 久久精品极品盛宴观看 | 美丽姑娘国语版免费看 | 日韩精美视频 | 比比资源先锋影音网 | 中国xxxxwwww泡妞的软件 | 人妻激情另类国产 | 国产香蕉在线观看 | aaa国产精品| 亚洲狼人 | 久久99国产精品成人 | 久久精品国产三级不卡 | 亚洲爱爱网| 国产精品人妻无码免费A片导航 | 日日摸夜夜添夜夜添高潮免费A片 | 国产色情无码网站视频APP | 亚洲AV成人噜噜无码网站A片 | 亚洲一线二线三线品牌精华液久久久 | 777午夜精品久久AV蜜桃小说 | 久久精品国产99久久香蕉 | 蜜臀AV国产精品久久久久 | 日本高清免费毛片大全 | 国产亚洲综合成人91精品 | 免费日本黄色网址 | 麻豆成人AV久久无码精品 | 国产午夜婷婷精品无码A片 国产午夜视频在线观看 | 婷婷综合久久中文字幕 | 日韩在线高清视频 | 中文字幕一区二区精品区 | 欧美又大又粗AAA片免费看 | 亚洲第一页乱 | 毛片网此 | 亚洲精品午夜一区二区电影院 | 国产精品激情 | s情网站 | 不卡的毛片 | 天天操夜夜操美女 | 色天天综合网色鬼综合 | 色中色主页 | 美国三级在线观看 | 中文乱码在线中文字幕中文乱码 | 少妇性夜夜春夜夜爽A片 | 日本成熟视频免费视频 | 久久亚洲精品中文字幕三区 | 曰本熟妇乱妇色A片在线 | 最新韩国r剧2019在线观看 | 亚洲大片在线观看 | 特黄aa级毛片免费视频播放 | 四虎影片 | 欧美一区二区视频在线观看 | 奇米777四色影视在线播放 | 国产欧美日本 | 啪啪色视频 | 亚洲 欧美 字幕 一区 在线 | 成人毛片免费 | 操欧美美女| 一扒二脱三插片在线观看 | 国产精品国产三级国产普通话对白 | 亚洲成人福利网站 | 污污的漫画小说羞羞漫画 | 日韩一卡2卡3卡4卡乱码免费 | 少妇被下春药玩弄A片 | www日本高清视频 | 国产成人精品日本亚洲11 | 男人一边吃奶一边做爰免费视频 | 欧美成人精品a8198v无码 | 国产aaaaa一级毛片无下载 | 国产在线一区二区 | 伊人成综合网伊人222 | 亚洲国产熟妇无码一区二区 | 永久看免费bbbbb视频 | 日本中文在线播放 | 亚洲资源站 | 很黄很色吸奶头A片动态图 狠狠撸的网站首页 | 玖玖玖精品视频免费播放 | 少妇被猛烈进入A片 | 黄网站色网址 | 欧美 日韩 国产 另类 图片区 | 国产精品变态重口在线 | 国产精品久久久久久久久久一区 | 午夜视频免费 | 日本一区二区三区四区在线观看 | 亚洲三级黄色 | 在线不欧美 | 夜夜操夜夜爽 | 人妻寂寞按摩中文字幕 | 一区二区三区内射美女毛片 | 最新更新国内自拍视频 | 美女吊逼| 91免费国产精品 | 这里只有精品视频在线 | 久久精品国产精品亚洲艾 | 在线观看国产精选免费 | 久久视频精品38线视频在线观看 | 四虎影库在线永久影院免费观看 | 亚洲日本一期二期三期精华液 | 欧美rapper瓶子 | 你懂的国产精品 | 久久亚洲精品无码A片大香大香 | 欧美在线看视频 | 在线观看视频观看高清午夜 | 你懂的中文字幕 | 一百款流氓软件免费下载安装 | 欧美中文字幕一区二区三区 | 欧美高清视频一区 | 黄色一级视频在线播放 | 欧美成人h版整片合集 | 一级做a爱过程免费视频超级 | 午夜福利视频1692 | 天天夜夜啦啦啦 | 精品亚洲一区二区三区在线播放 | 国产亚洲精品久久久久久线投注 | 成人电ying | 日本一区二区三区免费看 | 日本午夜小视频 | 精品视频在线免费观看 | 2020国产成人精品视频人 | 久久精品免费观看视频 | 偷偷鲁在线影院 | a级国产视频| 国产在线码观看清码视频 | 国产无人区码卡二卡3卡4卡网站 | 九九精品视频一区二区三区 | 国产亚洲精品视频在线网 | 久久综合久综合久久鬼色 | 辽宁老熟女高潮狂叫视频 |